If you have the option to do a wired Ethernet connection to the dock, that definitely helps with download speeds.
My personal favorite is this Ugreen ethernet and usb hub, since it's nice to have extra usb for stuff like the gamecube controller adapter. (Still getting mileage from those original GC controllers)
https://www.amazon.com/dp/B07TWGHM99/ref=cm_sw_r_cp_apa_fabc_YEaZFbWJ3Z6MM
Again, very optional, but definitely nice to have.
Maybe you should try different VPN servers. Something is definitely awry with the measurements you're getting. There is a different Ethernet adapter, which I currently use with my FS 4kMax, which yields speeds above the 100 Mbps limit from Amazon. I'm using a USB hub, which includes the Ethernet adapter. I also use the three port hub for a USB drive to house the majority of my apps. My FS Max gets the same 330 Mbps via WiFi and Ethernet. The router is 6 ft from the FS. Here's a link to my hub:
UGREEN USB 3.0 Ethernet Adapter... https://www.amazon.com/dp/B07TWGHM99?ref=ppx_pop_mob_ap_share
I suppose you could call your ISP and complain about the speeds you're receiving. You did measure 350 on your laptop; does the laptop buffer like the FS? I'm trying to figure out ways to test your set-up. Sometimes a FS can be shielded by the TV, depending on placement. That can affect WiFi speed. That's part of why I always recommend using the Amazon supplied Ethernet extender. Some of my clients have used longer (3-6 ft) HDMI cables to reposition the FS further away from the TV. This will improve WiFi performance, as well as Bluetooth range for paired headphones. 👍
Thanks, I'll look into that. The only thing I'm not super into is the proprietary barrel plug that it uses. I found this on Amazon and it has a micro USB input to power it, but I'm not sure if it can send power out through the USB A to the Fire TV. Any idea if it would work?
Out of stress and not thinking I ordered this on
UGREEN USB 3.0 Ethernet adaptador Hub con RJ45 10/100/1000 Gigabit Ethernet convertidor LAN adaptador de red con cable 3 puertos USB 3.0 Hub para MacBook, iMac, Surface Pro, Chromebook, ordenador portátil, PC https://www.amazon.com/dp/B07TWGHM99/ref=cm_sw_r_cp_api_glt_fabc_R21D7P9SN8K3SCX1711Y
Guess ill tell you guys how it goes
Has anyone tried this new Ugreen ethernet USB Hub https://www.amazon.com/gp/product/B07TWGHM99 and make it work with Switch (ethernet and usb ports)? Is at the same price than the previous ugreen black hub, that's why I'm asking about this because I never saw a question about the new version only the black version.